| S.No. | Checkpoint | IS Requirement | Status |
|---|---|---|---|
| A. SCOPE & REFERENCES | |||
| A1 | Define scope: extent of excavation, depths, levels, cross-sections, disposal locations Acceptance: Scope covers all excavation activities, lead/lift, disposal routes, and reinstatement plan | Cl. 1 — Scope definition | OK NC NA HOLD |
| A2 | List applicable codes, drawings, geotechnical report, and project specifications Acceptance: IS 3764, IS 1498, IS 2720, approved GFC drawings, soil investigation report listed | Cl. 2 — References | OK NC NA HOLD |
| A3 | Soil classification confirmed from geotechnical investigation per IS 1498 Acceptance: Soil identified (SP/SM/CL/CH etc.); bearing capacity, SPT N-values noted; water table level recorded | Cl. 3 — Soil classification | OK NC NA HOLD |
| B. MATERIALS & EQUIPMENT | |||
| B1 | Excavation machinery mobilised: JCB, excavator, tippers, compactors — all with valid fitness certificates Acceptance: Operators licensed; machines inspected; PUC and fitness certificates valid; reverse alarms working | Cl. 5 — Equipment readiness | OK NC NA HOLD |
| B2 | Shoring/strutting materials available (steel sheet piles, timber, soldier piles) for depths >1.5 m Acceptance: Shoring design approved by structural engineer; materials certified; depth >1.5 m triggers shoring | Cl. 7 — Shoring for deep excavation | OK NC NA HOLD |
| B3 | Dewatering equipment arranged: submersible pumps, well-points, sumps; standby pump available Acceptance: Pump capacity adequate; 1 standby per 2 working pumps; discharge lines routed to approved disposal | Cl. 9 — Dewatering | OK NC NA HOLD |
| C. SITE PREPARATION / PRE-REQUISITES | |||
| C1 | Underground utility survey completed: water, sewer, cables, gas; clearances obtained Acceptance: Underground utility map verified; NOC from utility agencies; test pits taken where in doubt | Cl. 4 — Utility identification | OK NC NA HOLD |
| C2 | Site survey, setting out, and reference benchmarks established and verified Acceptance: Grid lines, offsets, TBM established; joint survey signed by contractor and consultant | Cl. 4 — Setting out | OK NC NA HOLD |
| C3 | Barricading erected around excavation zone; warning signs and night lighting installed Acceptance: Hard barricade 1.2 m high at ≥1 m from edge; red/white tape; flashing lights at night | Cl. 6 — Area protection | OK NC NA HOLD |